Design of unobscured three-mirror optical system by applying vector wavefront aberration theory

Zou Gangyi; Fan Xuewu; Pang Zhihai; Feng Liangjie; Ren Guorui

The traditional unobscured three-mirror optical system is an intrinsically rotationally symmetric optical system with an offset aperture stop, a biased input field, or both of them, so off-axis sections of rotationally symmetric aspheric parent surface are ineluctable. Using the conclusion of vector wavefront aberration theory, a new unobscured three-mirror system by tilted the rotationally symmetric aspheric mirror was presented. The design reason and step of this system was analyzed, and then a system with effective focal length of 1 000 mm, field of view of 1020 and F-number 10 was designed. The volume of system(LengthWideHeight) less than 350 mm350 mm120 mm and image qualities of the example are near diffraction limit. Compared with other unobscured three-mirror system, the most prominent advantage of this system is that using tilted rotationally symmetric aspheric mirror to achieve unobscured style, thus reducing cost of the system.

1. Space Optics Laboratory,Xi'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi'an 710119,China

Received Date: 2013-06-09

Rev Recd Date: 2013-07-11

Publish Date: 2014-02-25

Key words:

Abstract: The traditional unobscured three-mirror optical system is an intrinsically rotationally symmetric optical system with an offset aperture stop, a biased input field, or both of them, so off-axis sections of rotationally symmetric aspheric parent surface are ineluctable. Using the conclusion of vector wavefront aberration theory, a new unobscured three-mirror system by tilted the rotationally symmetric aspheric mirror was presented. The design reason and step of this system was analyzed, and then a system with effective focal length of 1 000 mm, field of view of 1020 and F-number 10 was designed. The volume of system(LengthWideHeight) less than 350 mm350 mm120 mm and image qualities of the example are near diffraction limit. Compared with other unobscured three-mirror system, the most prominent advantage of this system is that using tilted rotationally symmetric aspheric mirror to achieve unobscured style, thus reducing cost of the system.

HTML

Reference (31)

[1]	Guo Yongxiang, Li Yingcai, Liang Tianmei, et al. Optical design of the uncoaxial three mirror system with wide field of view[J]. Acta Optica Sinica, 2010, 30(9): 2680-2683. (in Chinese)
[2]
[3]	郭永祥, 李英才, 梁天梅, 等. 一种大视场离轴三反光学系统研究[J]. 光学学报, 2010, 30(9): 2680-2683.
[4]	Zhang Liang, An Yuan, Jin Guan. Optical design of the uncoaxial three mirror system with wide field of view and long focal length[J]. Infrared and laser Engineering, 2007, 36(2): 278-280. (in Chinese)
[5]
[6]	Song Yanfeng, Shao Xiaopeng, Xu Jun. Off-axis three-mirror reflective optical system[J]. Infrared and Laser Engineering, 2008, 37(4): 706-709. (in Chinese)
[7]
[8]	Li Huan, Xiang Yang. Optical design of off-axis three-mirror telescope systems of imaging spectrometers[J]. Infrared and Laser Engineering, 2009, 38(3): 500-504. (in Chinese)
[9]	Ding Xuezhuan, Wang Xin, Lan Weihua, et al. Design of four-mirror reflective anastigmat optic system[J]. Infrared and Laser Engineering, 2008, 37(2): 319-321. (in Chinese)
[10]	张亮, 安源, 金光. 大视场、长焦距离轴三反射镜光学系统的设计[J]. 红外与激光工程, 2007, 36(2): 278-280.
[11]
[12]	Thompson K P. Description of the third-order optical aberrations of near-circular pupil optical systems without symmetry[J]. J Opt Soc Am A, 2005, 22(7): 1389-1401.
[13]	Rogers J R. Techniques and tools for obtaining symmetrical performance from tilted-component systems[J]. Opt Eng, 2000, 39(7): 1776-1787.
[14]
[15]	Shark R V, Thompson K P. Influence of alignment error of a telescope system on its aberration field[C]//SPIE, 1980, 251: 146-153.
[16]	宋岩峰, 邵晓鹏, 徐军. 离轴三反射镜光学系统研究[J]. 红外与激光工程, 2008, 37(4): 706-709.
[17]	Thompson K P. Aberration fields in tilted and decentered optical system[D]. US: University of Arizona, 1983.
[18]
[19]
[20]	Pan Junhua. The Design, Manufacture and Test of the Aspherical Optical Surfaces[M]. Suzhou: Suzhou University Press, 2004: 130-140. (in Chinese)
[21]	李欢, 向阳. 成像光谱仪离轴三反望远系统的光学设计[J]. 红外与激光工程, 2009, 38(3): 500-504.
[22]
[23]
[24]	丁学专, 王欣, 兰卫华, 等. 离轴四反射镜光学系统设计[J].红外与激光工程, 2008, 37(2): 319-321.
[25]
[26]
[27]
[28]
[29]
[30]
[31]	潘君骅. 光学非球面的设计、加工与检验[M]. 苏州: 苏州大学出版社, 2004: 130-140.

Design of unobscured three-mirror optical system by applying vector wavefront aberration theory

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Related

Proportional views